From: Sascha Hauer Subject: Re: [PATCH 0/3] crypto: sahara: Add support for SAHARA in i.MX27. Date: Thu, 21 Feb 2013 16:23:10 +0100 Message-ID: <20130221152310.GA1906@pengutronix.de> References: <1361449162-27302-1-git-send-email-javier.martin@vista-silicon.com> <201302211259.26763.arnd@arndb.de> <201302211440.59577.arnd@arndb.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: javier Martin , kernel@pengutronix.de, herbert@gondor.apana.org.au, davem@davemloft.net, tony@atomide.com, swarren@nvidia.com, shawn.guo@linaro.org, gcembed@gmail.com, linux-arm-kernel@lists.infradead.org, linux-crypto@vger.kernel.org To: Arnd Bergmann Return-path: Received: from metis.ext.pengutronix.de ([92.198.50.35]:35746 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753607Ab3BUPXU (ORCPT ); Thu, 21 Feb 2013 10:23:20 -0500 Content-Disposition: inline In-Reply-To: <201302211440.59577.arnd@arndb.de> Sender: linux-crypto-owner@vger.kernel.org List-ID: On Thu, Feb 21, 2013 at 02:40:59PM +0000, Arnd Bergmann wrote: > On Thursday 21 February 2013, javier Martin wrote: > > We know about the existence of DT and the constant migration process > > that is taking place towards it. > > > > Moreover we are strongly interested in converting the Visstrim SM10 > > platform to DT. Unfortunately, there are several issues that need to > > be solved so that Visstrim M10 can be fully converted to DT: > > - full SoC camera DT support > > - DT support for ov7670 > > - pinctrl support for i.MX27 > > Ok, I see. Full device tree support is certainly asking too much then. > > > Furthermore, we have limited resources at the moment and we have to > > decide priorities. But having an hybrid platform-DT support is our > > next task for Visstrim M10. > > Ok, cool. > > > However, I understand your concern about new drivers having DT > > support. Maybe a good approach could be that I added compile-tested > > only DT support for this driver and remove platform support for > > mainline submission (although we maintain it internally in our > > repositories). > > > > What do you think? > > Sounds good. Since it sounds like the hardware is available in all > imx27 device, maybe someone else can test your driver on an imx27 > board that already has partial DT support when you add it to > arch/arm/boot/dts/imx27.dtsi? > > Is there any reason why an imx27 based board would not support this > driver? Are there any other chips that could use it, e.g. imx25 or > imx6? Neither i.MX25, i.MX31 nor i.MX21 have this unit. I haven't checked the others, but I assume this is i.MX27 only. Sascha -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |